Re: Color Mixing (Pigment) question

[Wolfgang Rueckner <rueckner@FAS.HARVARD.EDU>]

Cyan is what you get if you remove red from white light.  Green and
blue will reflect most of the colors of the spectrum expect red,
leaving you with cyan. -- Wolfgang


> Our physics book (h.s.) had a question about what color is obtained
> when pure green and pure blue pigment are mixed.  The book answer
> was "cyan pigment."  Can someone explain this please?
>
> Why is the result not black?  The blue pigment filters out red &
> green light and the green pigment filters out blue & red light, so
> why isn't the result black?
>
> Thanks for your input.
>
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